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发明公开
CN108003068A 一种合成2-萘磺酸的方法 无效 - 撤回

一种合成2-萘磺酸的方法
摘要：
本发明涉及精细化工技术领域，具体涉及一种制备2-萘磺酸的新方法。本发明的操作过程是：萘与硫酸，在110～120℃温度条件下，反应120～150分钟，得到含有2-萘磺酸反应液。技术条件为采用98%浓硫酸；在110～120℃温度条件下，与萘反应120～150分钟，得到含有2-萘磺酸反应液。本发明制备2-萘磺酸的方法，使萘转化率99%，反应液中2-萘磺酸含量96%以上，温度常温，反应常压，达到节约能耗，提高转化率的效果。
摘要（英）：

The invention relates to the technical field of fine chemical industry, particularly to a novel 2-naphthalenesulfonic acid preparation method, which comprises: carrying out a reaction on naphthalene and sulfuric acid for 120-150 min at a temperature of 110-120 DEG C to obtain a reaction solution containing 2-naphthalenesulfonic acid, wherein the used sulfuric acid is 98% concentrated sulfuric acidis used. According to the present invention, with the novel 2-naphthalenesulfonic acid preparation method, the conversion rate of naphthalene is 99%, the 2-naphthalenesulfonic acid content in the reaction solution is more than 96%, and the reaction is performed at the normal temperature under the normal temperature, such that the energy consumption is saved, and the conversion rate is improved.

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